Yaktrax Pro Winter Shoe Traction Cleats - Ultra-Light Black Large. Walk run or work on slick surfaces with the same stability you're accustomed to on dry surfaces. Don't let the winter weather put a damper on your outdoor activities or athletic training with the Yaktrax Pro Cleats Specifications for Yaktrax PRO Shoe Traction Cleats: Webbing: Natural Rubber Coil: 1.4mm High Strength Steel 70percent Recycled Content: Coil Design: SkidLock (Patented) Colors: Black Only Weight: 2.0-4.0 oz. Features of Yaktrax PRO Traction Cleats: Spikeless Ultra Lightweight Design 360-degree Of Traction With Patented Skid Lock Coil System Durable Natural Rubber Blend For Flexible Fit Abrasion Resistant 1.4Mm Steel Coils Removable Performance Strap Ensures Fit Heel Tab Allows For Easy Installation And Removal Package Contents: Yaktrax Pro Winter Shoe Traction Cleats - Ultra-Light The Yaktrax Pros Shaped-Edge Coil design will give you better traction confidence and safety while walking jogging or running on packed snow or ice. These devices can withstand temperatures as low as negative 41 degrees Fahrenheit and are built to last.